mobile

I have a verizon sm-900v note3
but I dont live in the states , it says my phone is unlocked when I start it
but I cant update it via the device it self
I cant use other features like hotspot

I was wondering if it is possible to use odein to update my phone to a non-verizon
version of android

and would that make the verizon specific features go away ?
If yes, how ?
Or is is it only possible to update it to verizon specific operating system
and I never updated my device, still running on 4.3

I apologies, but I am new to android in general and to smart phones
thank you